The USB TYPE-C interface is the only USB device interface specified in the next generation of the USB specification. This makes the Type A interface and Type B interface of previous USB devices no longer supported.
The reason why the USB TYPE-C interface is so favored is not only related to the strong support and promotion of USBIF, but also has advantages that other USB interfaces cannot match. When designing USB TYPE-C connectors, the slogan provided by USBIF was "a new generation of USB connectors to serve the future market for 20 years."
Compared with other USB connector interfaces, the USB TYPE-C interface not only adds features that other old-fashioned USB interfaces do not have, but also solves the shortcomings of the old USB interface in use:
. Continue the convenient advantages of USB plug-and-play.
. The physical interface is very small and thin, and supports reversible insertion.
. Support USB3.X Gen2 (10Gbps, 20Gbps), USB4 40Gbps.
. It also supports DisplayPort data output (can also support Thunderbolt and HDMI data output).
. Supports standard power transmission up to 20V 5A and maximum 100W.
The USB TYPE-C interface will be the only USB interface of the next generation. Using this interface, you can:
. USB device connected to host
. Charge USB devices
. Monitor connection (DisplayPort)
Dock, also called docking station, is popular because laptops have a limited number of USB or video interfaces, and users want to expand a larger number or more types of interfaces to meet diverse application needs. Due to the limitation of the output power of the notebook interface, the docking station usually needs to be powered by its own power adapter.
The concept of docking station is similar to USB HUB, both are expansion device interfaces. It’s just that USB HUB expands the USB interface, while the docking station can expand all protocol specifications running on the USB TYPE-C interface, such as DisplayPort, USB PD, and even subsequent PCIE.
